seaweedfs/weed/filer2/filer_delete_entry.go
2020-08-18 00:31:42 -07:00

130 lines
4.1 KiB
Go

package filer2
import (
"context"
"fmt"
"github.com/chrislusf/seaweedfs/weed/glog"
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
"github.com/chrislusf/seaweedfs/weed/util"
)
func (f *Filer) DeleteEntryMetaAndData(ctx context.Context, p util.FullPath, isRecursive, ignoreRecursiveError, shouldDeleteChunks, isFromOtherCluster bool) (err error) {
if p == "/" {
return nil
}
entry, findErr := f.FindEntry(ctx, p)
if findErr != nil {
return findErr
}
isCollection := f.isBucket(entry)
var chunks []*filer_pb.FileChunk
chunks = append(chunks, entry.Chunks...)
if entry.IsDirectory() {
// delete the folder children, not including the folder itself
var dirChunks []*filer_pb.FileChunk
dirChunks, err = f.doBatchDeleteFolderMetaAndData(ctx, entry, isRecursive, ignoreRecursiveError, shouldDeleteChunks && !isCollection, isFromOtherCluster)
if err != nil {
glog.V(0).Infof("delete directory %s: %v", p, err)
return fmt.Errorf("delete directory %s: %v", p, err)
}
chunks = append(chunks, dirChunks...)
}
// delete the file or folder
err = f.doDeleteEntryMetaAndData(ctx, entry, shouldDeleteChunks, isFromOtherCluster)
if err != nil {
return fmt.Errorf("delete file %s: %v", p, err)
}
if shouldDeleteChunks && !isCollection {
go f.DeleteChunks(chunks)
}
if isCollection {
collectionName := entry.Name()
f.doDeleteCollection(collectionName)
f.deleteBucket(collectionName)
}
return nil
}
func (f *Filer) doBatchDeleteFolderMetaAndData(ctx context.Context, entry *Entry, isRecursive, ignoreRecursiveError, shouldDeleteChunks, isFromOtherCluster bool) (chunks []*filer_pb.FileChunk, err error) {
lastFileName := ""
includeLastFile := false
for {
entries, err := f.ListDirectoryEntries(ctx, entry.FullPath, lastFileName, includeLastFile, PaginationSize)
if err != nil {
glog.Errorf("list folder %s: %v", entry.FullPath, err)
return nil, fmt.Errorf("list folder %s: %v", entry.FullPath, err)
}
if lastFileName == "" && !isRecursive && len(entries) > 0 {
// only for first iteration in the loop
glog.Errorf("deleting a folder %s has children: %+v ...", entry.FullPath, entries[0].Name())
return nil, fmt.Errorf("fail to delete non-empty folder: %s", entry.FullPath)
}
for _, sub := range entries {
lastFileName = sub.Name()
var dirChunks []*filer_pb.FileChunk
if sub.IsDirectory() {
dirChunks, err = f.doBatchDeleteFolderMetaAndData(ctx, sub, isRecursive, ignoreRecursiveError, shouldDeleteChunks, false)
chunks = append(chunks, dirChunks...)
} else {
f.NotifyUpdateEvent(ctx, sub, nil, shouldDeleteChunks, isFromOtherCluster)
chunks = append(chunks, sub.Chunks...)
}
if err != nil && !ignoreRecursiveError {
return nil, err
}
}
if len(entries) < PaginationSize {
break
}
}
glog.V(3).Infof("deleting directory %v delete %d chunks: %v", entry.FullPath, len(chunks), shouldDeleteChunks)
if storeDeletionErr := f.Store.DeleteFolderChildren(ctx, entry.FullPath); storeDeletionErr != nil {
return nil, fmt.Errorf("filer store delete: %v", storeDeletionErr)
}
f.NotifyUpdateEvent(ctx, entry, nil, shouldDeleteChunks, isFromOtherCluster)
return chunks, nil
}
func (f *Filer) doDeleteEntryMetaAndData(ctx context.Context, entry *Entry, shouldDeleteChunks bool, isFromOtherCluster bool) (err error) {
glog.V(3).Infof("deleting entry %v, delete chunks: %v", entry.FullPath, shouldDeleteChunks)
if storeDeletionErr := f.Store.DeleteEntry(ctx, entry.FullPath); storeDeletionErr != nil {
return fmt.Errorf("filer store delete: %v", storeDeletionErr)
}
if !entry.IsDirectory() {
f.NotifyUpdateEvent(ctx, entry, nil, shouldDeleteChunks, isFromOtherCluster)
}
return nil
}
func (f *Filer) doDeleteCollection(collectionName string) (err error) {
return f.MasterClient.WithClient(func(client master_pb.SeaweedClient) error {
_, err := client.CollectionDelete(context.Background(), &master_pb.CollectionDeleteRequest{
Name: collectionName,
})
if err != nil {
glog.Infof("delete collection %s: %v", collectionName, err)
}
return err
})
}